Sheets
Mid
Grit · 80-320 assorted
3M Pro Grade Precision Assorted Pack
Five grits. One box. Everything you need to finish what you started.
Grit profile
100 grit sandpaper
Medium
Smoothing rough wood. Last grit before primer in most paint prep.
What 100 grit is for
100-grit smooths what 80 left behind. It’s the workhorse grit for general DIY: rough enough to remove tool marks, fine enough that 150 or 180 takes over for finishing. For paint prep on already-painted surfaces, 100 is often the only grit needed.
Projects at 100 grit
- · Smoothing milled lumber for paint
- · Pre-priming repaired drywall
- · Scuff-sanding old cabinets before repainting
- · Smoothing edges on plywood projects
- · Light shaping on softwood
Abrasive materials
- · aluminum oxide
- · ceramic
- · garnet (for fine woodwork)
Common mistake
On bare hardwood headed for stain, 100 alone is too coarse — keep climbing to at least 150 or 180.
Top pick at 100
3M Pro Grade Precision Assorted Pack
Five grits. One box. Everything you need to finish what you started.
Catalog fit
35
Current SKU matches in this grit lane.
Common forms
5
Forms represented here, led by discs.
Head to head
4
Comparison pages currently touching this stage of the sanding climb.
Use this grit when
The surface still needs this stage.
- · Smoothing rough wood. Last grit before primer in most paint prep.
- · This is the working middle of most sanding progressions: enough bite to matter, refined enough not to leave the job stranded.
- · On this site, 100 grit shows up most around fine furniture, metal finishing, paint prep, and weld prep.
Skip this grit when
The job is earlier or later than this.
- · Skip this grit if you still need heavy stock removal or if the surface is already ready for polish-level refinement.
- · Skip the urge to jump straight here from a very coarse grit; the scratch pattern underneath will usually survive the shortcut.
Recommended at this grit.
Sheets
Pro
Grit · 80
Norton 3X Sheet Sandpaper — 80 Grit (20-pack)
When 100-grit has been disappointing you and you're done being patient.
Discs
Pro
Grit · 80-400 assorted
Mirka Gold 5-inch Hook & Loop Disc Assortment
Clicks in smooth. Finnish-made. Doesn't ask you to stop.
Discs
Budget
Grit · 120
Diablo 5-inch ROS Discs — 120 Grit (50-pack)
50-pack. Go through them fast. Always have more.
Discs
Pro
Grit · 120
3M Cubitron II Hookit Disc 5-inch
Precision-shaped grain. Finds the angle and works it deep.
Belts
Mid
Grit · 40-240 assorted
POWERTEC 3" × 21" Sanding Belt Pack (20-pack)
Slide it on. Lock it down. Don't stop until the surface says so.
Belts
Pro
Grit · 80
4" × 36" Zirconia Sanding Belt Variety Pack (10 belts, 5 grits)
German-built for long, demanding sessions on material that pushes back.
Rolls
Mid
Grit · 120
Forney 71804 1" × 10yd Emery Cloth Bench Roll — 120 Grit
Unroll what you need. Wrap it tight. Work it by hand until it's done.
Rolls
Mid
Grit · 80
3M Pro Grade 2.75" × 25yd Sanding Roll — 80 Grit
Cut it to fit. Wrap it tight. Works every surface that won't hold still.
Rolls
Mid
Grit · 120
3M Stikit 426U Silicon Carbide Roll — 120 Grit
Silicon carbide on cloth. Flexible enough to go anywhere, tough enough to stay.
Sheets
Budget
Grit · 60-320 assorted
Gator Finishing Multi-Grit 9x11 Sandpaper Pack
Twenty-four sheets. Find out which grit you can't stay away from.
Discs
Pro
Grit · 50-3000 set
Diamond Hand Polishing Pad Set (50-3000 grit)
For the hard surfaces that don't open up for just anything.
Sheets
Pro
Grit · 120
Norton 3X Sheet Sandpaper — 120 Grit (20-pack)
120. The grit that decides whether the job goes well or badly.
Discs
Pro
Grit · 80-320 assorted
Mirka Abranet 5-Inch Mesh Sanding Discs (50-pack)
Dust goes through the disc instead of loading it. The math changes.
Discs
Pro
Grit · 80-400 assorted
Festool Granat 5-Inch Disc Set — Multi-Grit (25-pack)
The disc the Festool deserves. Everything else is settling.
Discs
Budget
Grit · 80-320 assorted
Sungold Abrasives 5-Inch Gold Hook & Loop Discs (100-pack)
A hundred discs. Change them when they're done, not when you run out.
Discs
Mid
Grit · 60
Diablo 4.5-Inch Flap Disc — 60 Grit (Type 29)
Zirconia at 60. Goes through weld and rust like it's been waiting.
Belts
Mid
Grit · 80-220 assorted
Klingspor 1" × 30" Sanding Belt Variety Pack (10 belts)
German-made. Sized for the small machine that does the careful work.
Sheets
Budget
Grit · 100
3M Pro Grade Drywall Sanding Sheets — 100 Grit (20-pack)
Open-coat for joint compound. It stays sharp because it has to.
Sponges
Budget
Grit · 100-220
3M Pro Grade Sanding Sponge — Fine/Medium Combo (3-pack)
Two grits, one block. Reaches every profile a flat sheet walks past.
Discs
Pro
Grit · 120
3M Trizact A3 Hookit Disc — 120 Grit
Three times faster than silicon carbide. The aggressive opener.
Discs
Pro
Grit · 120-400 assorted
Mirka Trizact 5-Inch Disc Set — Multi-Grit (25-pack)
Finnish precision. Pyramid grain. The finishing stack.
Discs
Mid
Grit · 80
Forney 71919 4.5-Inch Flap Disc — 80 Grit
The step between 60 and finish on metal.
Discs
Pro
Grit · 60-120 assorted
Mirka 4.5-Inch Zirconia Flap Disc Mix (10-pack)
Doesn't clog. Backing stays true. Made for the angle grinder.
Discs
Budget
Grit · 60-120 assorted
Gator 4.5-Inch Zirconia Flap Disc Variety (15-pack)
15 discs. Three grits. Metal work at cost.
Sponges
Budget
Grit · 80-220 assorted
Detail Sanding Stick Kit — 10 Sticks Assorted Profiles
For the detail work that won't stand still for a sheet.
Sponges
Mid
Grit · 100-320 assorted
Mirka Detail Sanding Stick Kit (8-pack)
European made. Reaches every detail the block passes over.
Sheets
Budget
Grit · 120
3M Drywall Sanding Screen — 120 Grit (3-pack)
Mesh instead of sheet. Compound goes through, not on.
Sheets
Budget
Grit · 120
Gator Drywall Sanding Screen — 120 Grit (5-pack)
Five screens. Never clogs. Cuts mud fast.
Rolls
Mid
Grit · 120
Klingspor 2" × 50yd J-Weight Cloth Roll — 120 Grit
Cloth backing. Bends without tearing. Wraps around everything.
Rolls
Mid
Grit · 80
3M J-Weight 2" × 50yd Cloth Roll — 80 Grit
Bends, doesn't break. Fifty yards of flexible stock removal.
Discs
Pro
Grit · 80-320 assorted
Mirka Abranet Gold 5-Inch Mesh Discs (25-pack)
Dust through, cutting consistent. The gold standard.
Discs
Mid
Grit · 80-320 assorted
SunMight Gold 5-Inch Disc Pack — Multi-Grit (50-pack)
Russian tech. Faster cutting. Fifty discs at a real price.
Discs
Mid
Grit · 60-320 assorted
Klingspor PS23 5-Inch Sanding Disc Set (50-pack)
German-made. Zirconia grain. The serious alternative.
Discs
Pro
Grit · 80-400 assorted
Festool Granat 6-Inch Disc Set (25-pack)
Six-inch format. Festool quality. Everything the name promises.
Head to head
Comparisons in this lane.
Norton 3X Sheet Sandpaper — 220 Grit (20-pack) vs. 3M Pro Grade Precision Assorted Pack
One grit done right, or five grits done well.
Read the breakdown →
Mirka Gold 5-inch Hook & Loop Disc Assortment vs. Diablo 5-inch ROS Discs — 120 Grit (50-pack)
Finnish precision or American volume.
Read the breakdown →
3M 9×11 40-Grit Sandpaper (5-pack) vs. Norton 3X Sheet Sandpaper — 80 Grit (20-pack)
How rough is the surface, and how much do you want left of it.
Read the breakdown →
3M Pro Grade Precision Assorted Pack vs. Gator Finishing Multi-Grit 9x11 Sandpaper Pack
Both cover the range. One holds up longer.
Read the breakdown →
Questions people ask
The practical part.
What is 100 grit actually for?
100 grit is for smoothing rough wood. last grit before primer in most paint prep. This is the working middle of most sanding progressions: enough bite to matter, refined enough not to leave the job stranded.
What should come before and after 100 grit?
The safe lane is usually 80 -> 100 -> 120. You can stretch that a little on easy material, but large jumps usually leave scratches behind.
Which forms make the most sense at 100 grit?
On UltraRough, this grit shows up most in discs, sheets, and rolls. That reflects where shoppers usually need this cut level in the real world.
Keep moving